Base for a telephone headset



FIG. 1 is a left side front perspective view of a base for a telephone headset showing my new design;

FIG. 2 is a top plan view;

FIG. 3 is a front elevation view;

FIG. 4 is a right side elevation view;

FIG. 5 is a left side elevation view;

FIG. 6 is a rear elevation view; and,

FIG. 7 is a left side front perspective view thereof showing, in phantom, a telephone headset resting therein.

The broken line showing in FIG. 7 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a base for a telephone headset, as shown and described. 